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Summary: Eutrophication Experiment
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1 Eutrophication
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Which sources are responsible for the accelerated nutrient loads which result in eutrophication?
Point sources and diffuse sources -
What are diffuse sources?
Run-off, groundwater and atmospheric deposition -
What is stimulated by eutrophication?
Excess plant growth and coloured algal soups -
Which plants result from eutrophication?
Duck weed, waterhyacinth , submerged plants -
What kind of organisms are phytoplankton?
Photoautotrophic -
From which are phytoplankton build of? Name the 6 things.
Elements, H, C, O, N, P, Fe. -
Which elements are the ones are the most important ones that could limit the primary production?
N, P, Si, Fe -
What is primary production?
The formation ofbiomass byautotrophic organisms through the uptake of inorganic carbon and other nutrients. Nutrients need to be taken up from surrounding medium. -
Harmful algal bloom pose a risk for:
- Human and animal poisonings;
- sustainability of ecosystems through
- severe overgrowth,
- oxygen depletion,
- release of potent toxins that may inhibit/eliminate other species
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When does oxygen depletion (Anoxia) occur as a result of harmful algal bloom?
- When respiration by a huge biomass during the night is no longer cmpensated by reaeration.
- due to bacterial breakdown of a decaying bloom
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